Instructions
Auxiliary Contact Kits
500LC–141C, 500LC–142C
for Bulletin 500LC Lighting Contactors
Use these instructions to add optional auxiliary contacts onto Bulletin
500LC Lighting Contactors.
Auxiliary
Contact
Contents of Kits (see Figure 1)
Kit No.
Auxiliary
Contacts
Connectors
with Leads
Contactor
Lever
Mounting
Screw
Operating
Screw
500LC–141C
500LC–142C
1
2
1
2
1
1
1 ( 5/8 in. long )
1 ( 1–1/8 in. long )
1
1
These auxiliary contacts can be field installed on the left side of the
lighting contactor. The auxiliary contacts operate along with the main
contacts to provide remote indication of the lighting contactor position
(closed or open).
Each auxiliary contact provides a form C, SPDT (single pole double
throw) contact rated 10 amps at 277V AC. Modification 500LC–141C has
one auxiliary contact, and modification 500LC–142C has two auxiliary
contacts. A connector with leads is provided for each auxiliary contact.
See Publication 500LC–IN001A–EN–P for contact configuration,
additional ratings, and wiring.
lever
manual
operating
screw
auxiliary
contact
connector
with leads
push — pull
mounting
screw
Figure 1 Auxiliary contacts
Do not manually operate
until all power and control
circuits are disconnected.
Figure 2 Manual operating screw
Publication 500LC–IN003A–EN–P May 2005
2
Insta lling Auxiliary C ontact K its 500L C– 141C, 500L C– 142C to B ulletin 500L C Lighting C ontactors
Ho w to Ins tall Au xilia ry C ontacts
CA UT ION
To avoid personal injury or property
damage, de–energize both line and control
power connected to the B ulletin 500LC
L ighting Conta ctor before proceeding.
1.
O pen circuit breaker s or other disconnecting means, then use a voltmeter to
veri fy no voltage is present at both control and line terminal screws.
2.
L abel, disconnect, and tape all wires (control, line, load) from the lighting
contactor.
3.
L oosen the mounting screws and remove the B ulletin 500LC L ighting
C ontactor from the enclosure.
4.
I nsert the plastic operatingscrew (from the kit) into the center of the coil and
carefully turn it clockwise until the threads engage the cam/core. See F igure 2.
5.
Pull the operating screw outward to pull the cam/core up.
6.
I nsert the lever (from the kit) into the left side of the lighting contactor. E nd
of cylindrical section should fit flush into the lighting contactor. See Fi gure 1.
7.
Push the operator screw inward to push the cam/core down.
8.
A ssemble the connector(s) with leads and auxiliary contact(s) from the kit.
9.
Inse rt the mounting screw through the auxiliary contacts(s) (f ar hole). Ver y
car efully install the assembly onto the guide pin on the left side of the lighting
contactor. T ighten the screw to only 4 in–lb.
Do not overtighten the mounting screw !
R emove manual operating screw after use !
10. U se the operator screw to manually move the cam/core up and down and
check operation of the auxiliar y contact(s).
11. R emove the operator screw from the cam/core.
12. R einstall the lighting contactor into the enclosure and tighten mounting screws.
13. R econnect all wires previously removed. T ighten the control, line, and load
connections to 18 in–lbs.
14. C lose circuit breakers or other disconnecting means and check electrical
operation of the lighting contactor.
2005 Ro ckwell Automation. All rights res erved. P rinted in US A.
Pu blica tion 500L C– IN003A –E N–P May 2005
381339–263
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